Résumé: The introduction ofmultiple antennas at the transmitter and/or at the receiver provides spatial diversity in the system. This spatial diversity can be exploited using Space Time Block Code (STBC) or Space-Time Trellis Coding (STTC). The first research works on Space-Time Coding (STC) for FilterBank MultiCarrier with Offset-QAM subcarrier modulation (FBMC/OQAM) were carried out on STTC. However, due to the difficult aspect of FBMC/OQAM interference management in STTC, only a single time-delay coding was considered. It was shown that the receiver obtains a sample sequence corresponding to a weighted sum of symbols in time domain. Thus, the data symbols are recovered from the received sequence through the maximum likelihood technique by means of the Viterbi algorithm. Regarding STBC for FBMC/OQAM, most of the works have considered the wellknown Alamouti code. The direct application of Alamouti coding to FBMC/OQAM makes an inherent interference to appear, which cannot be easily removed. The difficulty in direct application of the Alamouti scheme to FBMC/OQAM can be conceptually explained by the fact that the Alamouti scheme relies on a complex orthogonality, whereas FBMC/OQAM technique has only a real orthogonality, which cannot lead to the same type of equations. Many works have proposed potential solutions to this drawback, and we will review in this chapter the most significant contributions.